US4096640A - Method and apparatus for thermal treatment of or for matter-exchange with pourable material - Google Patents

Method and apparatus for thermal treatment of or for matter-exchange with pourable material Download PDF

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Publication number
US4096640A
US4096640A US05/720,451 US72045176A US4096640A US 4096640 A US4096640 A US 4096640A US 72045176 A US72045176 A US 72045176A US 4096640 A US4096640 A US 4096640A
Authority
US
United States
Prior art keywords
container
flow
stream
pourable material
central tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/720,451
Other languages
English (en)
Inventor
Wolfgang Krambrock
Hansjorg Schwedes
Wolfgang Richter
Klaus Elgeti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Waeschle Maschinenfabrik GmbH
Original Assignee
Waeschle Maschinenfabrik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Waeschle Maschinenfabrik GmbH filed Critical Waeschle Maschinenfabrik GmbH
Application granted granted Critical
Publication of US4096640A publication Critical patent/US4096640A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
    • F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
    • F26B3/092—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed agitating the fluidised bed, e.g. by vibrating or pulsating
    • F26B3/0926—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed agitating the fluidised bed, e.g. by vibrating or pulsating by pneumatic means, e.g. spouted beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • B01D53/08—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds according to the "moving bed" method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
    • B01J8/12—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by gravity in a downward flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/80—Water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40077—Direction of flow
    • B01D2259/40081—Counter-current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption

Definitions

  • the invention relates to a method and an apparatus for thermal treatment of or for matter exchange with pourable material, according to which the pourable material is placed into a container and air, the physical characteristics of which correspond to the treatment to be applied, is made to pass through it from below to above.
  • the simplest possibility for heat- or matter exchange with pourable materials is offered by the fluidized-bed or vortex-layer method, wherein a gas stream flows over a porous bottom through the fill and the flow-through speed is chosen so high that the contact forces between the individual particles are overcome by the flow energy.
  • the pourable material then behaves similar to a liquid.
  • local increases in the flow velocities make it possible to obtain a turnover of the pourable material, whereby heat- and matter exchange are intensified, as is known.
  • the invention has the purpose of creating a method of the type mentioned in the introduction and an apparatus for carrying it out, which make it possible to treat the pourable material completely, gently, energy-conservingly and with a short dwell time.
  • the basic concept of the invention namely the separation of the supplied airstream into an airstream effecting the actual treatment and an airstream effecting the systematic turn-over of the pourable material, combines it in the advantages of the fluidized-bed treating method and of the method which operates with the pourable material at rest, whereas the specific disadvantages inherent in the two main methods, i.e. in the first case high energy use and danger of separation when mixtures of pourable materials are treated, in the latter case incomplete treatment and the danger of clump formation.
  • the method according to the invention has been found particularly superior for the treatment of granulate-type pourable materials.
  • the pourable material to be heated, cooled, dried or de-gassed is filled into a container 1 with a conical bottom 2 and central tube 3.
  • the lower section 9 of the central tube consists of porous material, e.g. sieve fabric, which makes the flow-through of gas possible but prevents passage of pourable-material particles.
  • the pressure difference ⁇ p obtaining between the lower end and the upper end of the central riser tube causes a part of the gas stream to travel as a trickle-flow in accordance with the arrows 8, through the pores of the fill which is practically at rest.
  • This trickle-flow essentially effects the desired heat-and matter exchange.
  • the flow in the central riser tube is of almost no consequence for the heat-and matter exchange, because of the very low dwell time of the particles. It only effects a turn-over and movement of the fill.
  • the gas quantity which, due to the pressure in the central tube which is higher than the pressure in the fill, flows from the central tube into the fill and as a trickle-flow through the same. This guarantees a flow through the fill with simultaneous turnover and, in appropriate circumstances, mixing of the material to be treated.
  • a further possibility of increasing the quantity of gas issuing from the porous section 9 resides in reducing the distance between upper edge of riser tube and shielding cone 7, to increase the pressure difference ⁇ p.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Microbiology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
US05/720,451 1975-09-02 1976-09-03 Method and apparatus for thermal treatment of or for matter-exchange with pourable material Expired - Lifetime US4096640A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DT2539042 1975-09-02
DE2539042A DE2539042B2 (de) 1975-09-02 1975-09-02 Verfahren und Vorrichtung zur Temperaturbehandlung von oder zum Stoffaustausch bei Schüttgut

Publications (1)

Publication Number Publication Date
US4096640A true US4096640A (en) 1978-06-27

Family

ID=5955420

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/720,451 Expired - Lifetime US4096640A (en) 1975-09-02 1976-09-03 Method and apparatus for thermal treatment of or for matter-exchange with pourable material

Country Status (9)

Country Link
US (1) US4096640A (xx)
JP (2) JPS604358B2 (xx)
BE (1) BE845750A (xx)
CH (1) CH619867A5 (xx)
DE (1) DE2539042B2 (xx)
FR (1) FR2322649A1 (xx)
GB (1) GB1544945A (xx)
NL (1) NL7609716A (xx)
ZA (1) ZA765244B (xx)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4237800A (en) * 1978-02-13 1980-12-09 Stal-Laval Turbin Ab Multi-stage cleaning plant
US4526111A (en) * 1980-05-23 1985-07-02 Deutsche Babcock Aktiengesellschaft Nozzle for a fluidized bed firing system
US4569596A (en) * 1985-11-26 1986-02-11 Fuller Company Pneumatic conveying and material blending apparatus and method
US4631838A (en) * 1984-05-23 1986-12-30 Bosch-Siemens Hausgeraete Gmbh Device for a roasting chamber for roasting green coffee beans
US4830605A (en) * 1984-04-12 1989-05-16 Kashiwa Co., Ltd. Combustion apparatus and method of forcibly circulating a heating medium in a combustion apparatus
US4879958A (en) * 1987-12-17 1989-11-14 Allen John V Fluidized bed reactor with two zone combustion
US6108935A (en) * 1998-09-19 2000-08-29 Mortimer Technology Holdings Limited Particle treatment in a toroidal bed reactor
US20150343371A1 (en) * 2014-05-29 2015-12-03 Stacy L. Wasson Drying Apparatus
US11523710B2 (en) * 2016-10-14 2022-12-13 Societe Des Produits Nestle S.A. Coffee containers and associated system and method for preparing roast and ground coffee

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583032Y2 (ja) * 1978-11-29 1983-01-19 日本乾燥機株式会社 横型連続流動乾燥装置
CH637845A5 (de) * 1978-12-22 1983-08-31 Gimag Ag Verfahren und vorrichtung zur intermittierenden, regenerierenden reinigung eines filterbettes.
JPS56117918A (en) * 1980-02-25 1981-09-16 Ishizuka Glass Ltd Bottle upright take-out device
NL8001980A (nl) * 1980-04-03 1981-11-02 Ir Giok Khoen Khoe Werkwijze voor het convectief drogen en eventueel branden en onthulzen/slijpen van een korrelig vrijstromend stortgoed en inrichting voor uitvoeren van de werkwijze.
JPS5720772U (xx) * 1980-07-11 1982-02-03
JPS5775980U (xx) * 1980-10-27 1982-05-11
JPS5786955U (xx) * 1980-11-10 1982-05-28
DE3132758A1 (de) * 1981-08-19 1983-03-03 Linde Ag, 6200 Wiesbaden Absorptionsverfahren
JPS58113494A (ja) * 1981-12-26 1983-07-06 日立建機株式会社 開削シ−ルド装置
JPS58120994A (ja) * 1981-12-31 1983-07-19 日立建機株式会社 開削シ−ルド装置
GR78597B (xx) * 1982-06-22 1984-09-27 Gimag Ag
JPS60500563A (ja) * 1983-02-24 1985-04-25 リンデ　アクチエンゲゼルシヤフト 吸着方法
JPS60218226A (ja) * 1984-04-13 1985-10-31 Inax Corp 異形タイルの搬送並びに移載装置
JPH0651532B2 (ja) * 1985-05-31 1994-07-06 株式会社キリンテクノシステム 容器回転搬送装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735803A (en) * 1956-02-21 Method for contacting sub-divided solid
US3241520A (en) * 1964-10-19 1966-03-22 Wisconsin Alumni Res Found Particle coating apparatus
GB1045626A (en) * 1964-02-17 1966-10-12 Techne Cambridge Ltd Improvements in or relating to fluidised sand beds
US3911594A (en) * 1974-02-04 1975-10-14 Daryl C Mcintire Particulate material circulating means

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1173209A (fr) * 1956-02-02 1959-02-23 Inventa Ag Procédé pour le traitement par des gaz de matières solides granulaires
DE1296612B (de) * 1965-02-17 1969-06-04 Puetter Gustav Verfahren und Vorrichtung zum chargenweisen Granulieren staubfoermiger Stoffe und/oder zur Umhuellung von Partikeln
US3648985A (en) * 1970-12-01 1972-03-14 Fuller Co Blending apparatus
DE2219397C3 (de) * 1972-04-20 1975-07-24 Bayer Ag, 5090 Leverkusen Behälter zum pneumatischen Mischen von pulvrigem oder körnigem Gut

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735803A (en) * 1956-02-21 Method for contacting sub-divided solid
GB1045626A (en) * 1964-02-17 1966-10-12 Techne Cambridge Ltd Improvements in or relating to fluidised sand beds
US3241520A (en) * 1964-10-19 1966-03-22 Wisconsin Alumni Res Found Particle coating apparatus
US3911594A (en) * 1974-02-04 1975-10-14 Daryl C Mcintire Particulate material circulating means

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4237800A (en) * 1978-02-13 1980-12-09 Stal-Laval Turbin Ab Multi-stage cleaning plant
US4526111A (en) * 1980-05-23 1985-07-02 Deutsche Babcock Aktiengesellschaft Nozzle for a fluidized bed firing system
US4830605A (en) * 1984-04-12 1989-05-16 Kashiwa Co., Ltd. Combustion apparatus and method of forcibly circulating a heating medium in a combustion apparatus
US4631838A (en) * 1984-05-23 1986-12-30 Bosch-Siemens Hausgeraete Gmbh Device for a roasting chamber for roasting green coffee beans
US4569596A (en) * 1985-11-26 1986-02-11 Fuller Company Pneumatic conveying and material blending apparatus and method
US4879958A (en) * 1987-12-17 1989-11-14 Allen John V Fluidized bed reactor with two zone combustion
US6108935A (en) * 1998-09-19 2000-08-29 Mortimer Technology Holdings Limited Particle treatment in a toroidal bed reactor
US20150343371A1 (en) * 2014-05-29 2015-12-03 Stacy L. Wasson Drying Apparatus
US9440186B2 (en) * 2014-05-29 2016-09-13 Stacy L. Wasson Drying apparatus
US11523710B2 (en) * 2016-10-14 2022-12-13 Societe Des Produits Nestle S.A. Coffee containers and associated system and method for preparing roast and ground coffee

Also Published As

Publication number Publication date
NL7609716A (nl) 1977-03-04
ZA765244B (en) 1977-08-31
JPS604358B2 (ja) 1985-02-02
JPS5245583A (en) 1977-04-11
CH619867A5 (xx) 1980-10-31
JPS5234535A (en) 1977-03-16
DE2539042A1 (de) 1977-03-17
DE2539042B2 (de) 1980-07-24
FR2322649A1 (fr) 1977-04-01
FR2322649B1 (xx) 1982-02-05
GB1544945A (en) 1979-04-25
BE845750A (fr) 1976-12-31

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